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| 1 | China’s first deep manned submersible,JIAOLONG显示文摘A deep manned submersible is indispensable to deep ocean exploration. No other equipment can bring scientists to ex-treme sea floor depths to do research in situ. Marine geology, seafloor geophysics,marine biology,and oceanic chemistry are the fields that scientists are particularly eager to study [1-6]. Chinese scientists have long dreamed of using their own submersible to probe the deep sea. China’s recent fast development of a deep manned submersible has realized that dream. | Liu, Feng Cui, WeiCheng Li, XiangYang | 2010 | Science China Earth Sciences2010，53，10： | 24 |
| 2 | Activation of paternally expressed imprinted genes in newly derived germline-competent mouse parthenogenetic embryonic stem cell lines显示文摘单性生殖的胚胎的茎(足) 细胞为学习位于印的 genomic 下面的分子的机制提供一个珍贵试管内模型系统。然而,足房间的 thepluripotency 和父亲一般地表示的印的基因的表示侧面一直不是充分探索了。在这研究,三根老鼠足房间线被建立,在扩大文化的这些房间的区别潜力被评估。无差别的房间有正常核型和同型结合的染色体,并且表示了 ES-cell-specific 分子的标记。房间在超过 50 个段落以后仍然保持无差别并且展出了 pluripotentdifferentiation 能力。确定的 ES 房间的所有三根线生产了 teratomas;ES 房间的二根线生产了怪物和细菌线传播。而且,在这些房间的父亲一般地表示的印的基因 Snrpn, U2af1-rs1, Peg3,影响, Zfp127, Dlk1 和 Mest 的激活被检测。父亲一般地表示的印的基因被发现在单性生殖的联盟者的胚囊阶段被表示的一些激活胚胎试管内,他们的表示水平与扩大的足细胞培养增加了。而且,我们在足房间的这些父亲一般地表示的印的基因的激活在 ther 的甲基化与一个变化被联系的数据表演鼓舞了差别 methylated 区域。这些调查结果为足房间的 thepluripotency 提供直接证据并且在足房间表明在脱氧核糖核酸甲基化模式和父亲一般地表示的印的基因的激活之间的协会。因此,确定的 ES 房间线为在哺乳动物的开发学习 epigenetic 规定提供一个珍贵模型。 | Hua Jiang Bowen Sun Weicheng Wang Zhihong Zhang Furong Gao Guilai Shi Bing Cui XiangyinKong Zhao He Xiaoyan Ding Ying Kuang Jian Fei Yi Juan Sun Yun Feng Ying Jin | 2007 | Cell Research2007，17，9： | 10 |
| 3 | Mechanism of the Rpn13-induced activation of Uch37显示文摘 | Lianying Jiao Songying Ouyang Neil Shaw Gaojie Song Yingang Feng Fengfeng Niu Weicheng Qiu Hongtao Zhu Li-Wei Hung Xiaobing Zuo V. Eleonora Shtykova Ping Zhu Yu-Hui Dong Ruxiang Xu Zhi-Jie Liu | 2014 | Protein & Cell2014，5，8： | 4 |
| 4 | Improving the performance of solid oxide electrolysis cell with gold nanoparticles-modified LSM-YSZ anode显示文摘Gold, as the common current collector in solid oxide electrolysis cell(SOEC), is traditionally considered to be inert for oxygen evolution reaction at the anode of SOEC. Herein, gold nanoparticles were loaded onto conventional strontium doped lanthanum manganite-yttria stabilized zirconia(LSM-YSZ) anode, which evidently improved the performance of oxygen evolution reaction at 800 °C. The current densities at 1.2 V and 1.4 V increased by 60.0% and 46.9%, respectively, after loading gold nanoparticles onto the LSM-YSZ anode. Physicochemical characterizations and electrochemical measurements suggested that the improved SOEC performance was attributed to the accelerated electron transfer of elementary process in anodic polarization reaction and the newly generated triple phase boundaries in gold nanoparticles-loaded LSMYSZ anode. | Yuefeng Song Xiaomin Zhang Yingjie Zhou Houfu Lv Qingxue Liu Weicheng Feng Guoxiong Wang Xinhe Bao | 2019 | Journal of Energy Chemistry2019，28，8： | 4 |
| 5 | The relati onship between smoke concentration some distance down the hallway and the opening of the room of fire origin显示文摘 | Fang Tingyong Yang Li zhong Huang Rui Feng Wenxing Zhai Guanglong Fan Weicheng | 2003 | Journal of Fire Sciences2003，21，4： | 1 |
| 6 | Calculating electron-phonon coupling matrix: Theory introduction,code development and preliminary application显示文摘Electron-phonon coupling(EPC) in bulk materials is an important effect in multifarious physical and chemical phenomena. It is the key to explaining the mechanisms for superconductivity, electronic transport, etc. The EPC matrix describes the coupling of the electronic eigenstates of the studied system under the perturbation of phonons. Although the EPC matrix is closely relevant to many fundamental physicochemical properties, it remains a challenge to calculate the EPC matrix precisely due to the high computational cost. In recent years, Giustino et al. developed the EPW method on open-source ab-initio software Quantum Espresso, which uses Wannier functions(WFs) to calculate EPC matrix. However, due to the limitation of their implementation,it is not possible yet to calculate the EPC matrix under some important computational conditions, e.g., for DFT+U and HSE calculation. Given the importance of these computational conditions(e.g., for transition metal oxides), we have developed our own implementation of EPC matrix calculation based on the domestic ab-initio software PWmat. Our code allows the DFT+U and HSE correction, so we can get a more accurate EPC matrix in the related problems. In this article, we will first review the formulae and elucidate how to calculate the EPC matrix by constructing WFs. Then we will introduce our code along with its workflow on PWmat and present our test results of two classical semiconductor systems Al As and Si, showing consistency with EPW. Next, the EPC matrix of Li Co O_(2), a classical cathode material for lithium-ion batteries, is calculated using different exchange correlation(XC) functionals including LDA, PBE, DFT+U and HSE. A comparison is provided for the related EPC matrix. It shows there could be a significant difference for the EPC matrix elements due to the use of different XC functionals.Our implementation thus opens the way for fast calculation of EPC for the important class of materials, like the transition metal oxides. | YE YaoKun WENG MouYi ZHANG WenTao LIN WeiCheng CHEN TaoWen PAN Feng ZHENG JiaXin WANG Lin-Wang | 2023 | Science China(Technological Sciences)2023，66，1： | 1 |
| 7 | The relationship between smoke concentration some distance down the hallway and the opening of the room of fire origin 显示文摘 | Fang Tingyong Yang Lizhong Huang Ru Feng Wenxing Zhai Guanglong Fan Weicheng | 2003 | Journal of Fire Sciences2003，21，： | 1 |
| 8 | Orthorhombic Y_(0.95-x)Sr_(x)Co_(0.3)Fe_(0.7)O_(3-δ) anode for oxygen evolution reaction in solid oxide electrolysis cells显示文摘Cubic perovskite oxides usually suffer from delamination and Sr^(2+) segregation for catalyzing oxygen evolution reaction (OER) at the anodes of solid oxide electrolysis cells (SOECs). It is crucial to develop alternative and efficient anode materials for SOECs. Herein, a series of novel Y_(0.95-x)Sr_(x)Co_(0.3)Fe_(0.7)O_(3-δ) (YSCF-x) orthorhombic perovskite oxides in the Pnma (62) space group are synthesized as anode materials of SOECs. Physicochemical characterizations and density functional theory calculations reveal that the partial substitution of Y^(3+) by Sr^(2+) increases the oxygen vacancy concentration and mobility as well as improves the electrical conductivity, which contributes to the excellent OER activity of YSCF-x. At 800 °C, the current density of SOEC with YSCF-0.05-Ce0.8Sm0.2O2-δ anode can reach 1.32 A cm^(−2) at 1.6 V, about twice that of SOEC with Y_(0.95-x)Sr_(x)Co_(0.3)Fe_(0.7)O_(3-δ)-Ce_(0.8)Sm_(0.2)O_(2-δ) anode. This work paves a new avenue for the design of advanced anode materials of SOECs. | Weicheng Feng Yuefeng Song Tianfu Liu Jingwei Li Xiaomin Zhang Junhu Wang Guoxiong Wang Xinhe Bao | 2021 | Fundamental Research2021，1，4： | 0 |
| 9 | The QseB/QseC two-component system contributes to virulence of Actinobacillus pleuropneumoniae by downregulating apf gene cluster transcription显示文摘Actinobacillus pleuropneumoniae(APP)is the major pathogen of porcine contagious pleuropneumoniae(PCP).The QseB/QseC two-component system(TCS)consists of the regulator QseB and the kinase QseC,which relates to quorum sensing(QS)and virulence in some bacteria.Here,we investigated the role of QseB/QseC in apf gene cluster(apfABCD)expression of APP.Our results have showed that QseB/QseC TCS can potentially regulate the expression of apf gene cluster.The△qseBC,△apfA,△apfB,△apfC and△apfD strains are more sensitive to acidic and osmotic stressful conditions,and exhibite lower biofilm formation ability than wild-type(WT)strain,whereas the complemented strains show similar phenotype to the wr strain.In additon,the mutants have defective antiphagocytosis,adhesion and invasion when they come into contact with the host cells.In experimental animal models of infection,mice infected with△qseBC,△apfA,△apfB,△apfC and △apfD strains showed lower mortality and bacterial loads in the lung and the blood than those infected with wr strain.In conclusion,our results suggest that QseB/QseC TCS contributes to stress resistance,biofilm formation,phagocytosis,adhesion,invasion and virulence by downregulating expression of apf gene cluster in A.pleuropneumoniae. | Benzhen Duan Wei Peng Kang Yan Feng Liu Jia Tang Feng ming Yang Huanchun Chen Fangyan Yuan Weicheng Bei | 2022 | Animal Diseases2022，2，1： | 0 |
| 10 | Low-resistance, high-force, and large-ROM fabric-based soft elbow exosuits with adaptive mechanism and composite bellows显示文摘Due to the lightweight and compliance, fabric-based pneumatic exosuits are promising in the assistance and rehabilitation of elbow impairments. However, existing elbow exosuits generally suffer from remarkable mechanical resistance on the flexion of the elbow, thus limiting the output force, range of motion(ROM), and comfortability. To address these challenges, we develop a fabric-based soft elbow exosuit with an adaptive mechanism and composite bellows in this work. With the elbow kinesiology considered, the adaptive mechanism is fabricated by sewing the interface of the exosuit into spring-like triangle pleats, following the profile of the elbow to elongate or contract when the elbow flexes or extends. The composite bellows are implemented by further sealing a single blade of bellows into two branches to enhance the output force. Based on these structural features, we characterize the mechanical performance of different soft elbow exosuits: exosuit with normal bellows-NB, exosuit with adaptive mechanism and normal bellows-AMNB, exosuit with adaptive mechanism and composite bellows-AMCB. Experimental results demonstrate that by comparing with NB, the mechanical resistance of AMNB and AMCB decreases by 80.6% and 78.6%, respectively;on the other hand, the output torque of AMNB and AMCB increases to 120.3% and 207.0%, respectively, at50 k Pa when the joint angle is 120°. By wearing these exosuits on a wooden arm model(1.25 kg), we further verify that AMCB can cover a full ROM of 0°–130° at the elbow with 500 g weight. Finally, the application on a health volunteer with AMCB shows that when the volunteer flexes the elbow to lift a weight of 500 g, the s EMG activity of the biceps and triceps is markedly reduced. | HUANG WeiCheng FENG Miao YANG DeZhi GU GuoYing | 2023 | Science China(Technological Sciences)2023，66，1： | 0 |
| 11 | Phonon damping in one-dimensional lattices with asymmetric interactions显示文摘The symmetry of interparticle interaction plays an important role in determining the energy transport and diffusion behavior of one-dimensional(1D) lattices, not only in the process of hydrodynamics but also in the process of kinetics. In this paper, we study the relaxation properties of phonons in 1D lattices with asymmetric and symmetric interparticle interactions, exemplified by the famous Fermi-Pasta-Ulam-Tsingou model. Asymmetric interparticle interactions(AIIs) lead to larger damping rates of phonons as compared to symmetric ones in the low-temperature limit, and the difference gradually vanishes when the temperature increases. Moreover, in lattices with AIIs, the dependence of the damping rate Γ of phonons still follows a power-law on the wave number q, i.e., Γ ~q^(γ) for small q. In particular, at low temperatures, AIIs result in γ ≈ 1, which is out of the predictions of 3/2 ≤ γ ≤ 2 from various theories. Our results provide insights into understanding the anomalous heat conduction observed in 1D chains and ultra-low phonon heat conduction found in certain solids. | Sihan Feng Weicheng Fu Yong Zhang Hong Zhao | 2022 | Science China(Physics,Mechanics & Astronomy)2022，65，11： | 0 |
| 12 | In situ electrochemical reconstruction of Sr_(2)Fe_(1.45)Ir_(0.05)Mo_(0.5)O_(6-δ)perovskite cathode for CO_(2)electrolysis in solid oxide electrolysis cells显示文摘Solid oxide electrolysis cells provide a practical solution for the direct conversion of CO_(2)to other chemicals(i.e.CO),however,an in-depth mechanistic understanding of the dynamic reconstruction of active sites for perovskite cathodes during CO_(2)electrolysis remains a great challenge.Herein,we identify that iridium-doped Sr_(2)Fe_(1.45)Ir_(0.05)Mo_(0.5)O_(6-δ)(SFIrM)perovskite displays a dynamic electrochemical reconstruction feature during CO_(2)electrolysis with abundant exsolution of highly dispersed IrFe alloy nanoparticles on the SFIrM surface.The in situ reconstructed IrFe@SFIrM interfaces deliver a current density of 1.46 A cm^(−2)while maintaining over 99%CO Faradaic efficiency,representing a 25.8%improvement compared with the Sr_(2)Fe_(1.5)Mo_(0.5)O_(6-δ)counterpart.In situ electrochemical spectroscopy measurements and density functional theory calculations suggest that the improved CO_(2)electrolysis activity originates from the facilitated formation of carbonate intermediates at the IrFe@SFIrM interfaces.Our work may open the possibility of using an in situ electrochemical poling method for CO_(2)electrolysis in practice. | Yuxiang Shen Tianfu Liu Rongtan Li Houfu Lv Na Ta Xiaomin Zhang Yuefeng Song Qingxue Liu Weicheng Feng Guoxiong Wang Xinhe Bao | 2023 | National Science Review2023，10，9： | 0 |
| 13 | In-situ exsolution of cobalt nanoparticles from La_(0.5)Sr_(0.5)Fe_(0.8)Co_(0.2)O_(3-δ) cathode for enhanced CO_(2) electrolysis performance显示文摘Solid oxide electrolysis cell(SOEC)is a promising technology for CO_(2) conversion and renewable energy storage with high efficiency.It is highly desirable to develop catalytically active cathodes for CO_(2) electrolysis.Herein,cathode materials with different structural stabilities are designed by Nb substitution on La_(0.5)Sr_(0.5)Fe_(0.8)Co_(0.2)O_(3-δ)(LSFC82)to obtain La_(0.5)Sr_(0.5)Fe_(0.7)Co_(0.2)Nb_(0.1)O_(3-δ)(LSFCN721)and La_(0.5)Sr_(0.5)Fe_(0.8)Co_(0.1)Nb_(0.1)O_(3-δ)(LSFCN811),respectively.LSFC82-Sm_(0.2)Ce_(0.8)O_(2-δ)(SDC)cathode with inferior structural stability(ability to maintain the structure)shows desirable CO_(2) electrolysis performance with the generated current density of 1.80 A cm^(-2)2 at 1.6 V and stable performance during 110 h operation at 1.2 V and 800℃.However,LSFC82 particles are collapsed into pieces after stability test with the generation of Co nanoparticles simultaneously.The frameworks of LSFCN721 and LSFCN811 particles maintain well because of the high-valent niobium,but Co exsolution,ox-ygen vacancy content and the corresponding CO_(2) electrolysis performance are restricted.This work confirms that Co nanoparticles can be exsolved from LSFC82-SDC cathode during CO_(2) electrolysis,providing references for constructing metallic nanoparticles decorated-perovskite cathodes for SOECs. | Jingwei Li Qingxue Liu Yuefeng Song Houfu Lv Weicheng Feng Yuxiang Shen Chengzhi Guan Xiaomin Zhang Guoxiong Wang | 2022 | Green Chemical Engineering2022，3，3： | 0 |
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